Anti-misoperation sign for switch device conversion handle and operation button

Abstract

The utility model relates to the technical field of electric power safety, provide a kind of anti-misoperation sign suitable for switch device conversion handle and operating button, it is characterized by, including: sign body, the hollow frame is set on the sign body, the hollow frame corresponds with the external contour of the rotary switch seat of switch device or operating button.Solve the problem that traditional electric power operation sign is easy to fall off, hanging is not unified and warning information visibility is poor.

Description

Technical Field

[0001] This utility model relates to the field of power safety technology, and more specifically, to an anti-misoperation sign suitable for switchgear handles and operating buttons. Background Technology

[0002] In the field of power operations, hanging warning signs is one of the important technical measures to ensure safety. Currently, the warning signs commonly used at power plant sites are mainly made of PVC sheets, with warning images and text printed on one side. These signs are usually fixed by symmetrically opening connecting holes on both sides of the sign, and then binding them with cotton rope or similar linear material through the holes, and then hanging them on the switch handles or operating buttons of the devices that need to be warned.

[0003] However, the traditional knotted rope hanging signs mentioned above have the following shortcomings in practical applications: (1) Poor stability and easy to fall off accidentally: Since it is only suspended by ropes, the sign is easy to shake or even fall off the handle or button when the equipment vibrates or when people touch it slightly, thus losing its warning function and posing a safety hazard.

[0004] (2) Inconsistent hanging effect: The rope length depends on manual binding, which makes it difficult to ensure uniformity. This results in different heights of signs hanging on different equipment in the same area, which are prone to tilting, making the scene look messy and lacking in standardization.

[0005] (3) Limited visibility of warning information: Existing signs usually only print warning information on one side. If the sign flips over due to airflow or other reasons, the back side cannot provide effective warnings, which reduces reliability. Utility Model Content

[0006] The purpose of this utility model is to provide an anti-misoperation sign suitable for switchgear handles and operating buttons, aiming to solve the problems of traditional power operation signs being easy to fall off, inconsistent hanging, and poor visibility of warning information.

[0007] This utility model is achieved through the following technical solution: An anti-accidental operation sign for a switch device's changeover handle and operating button is characterized by comprising: a sign body, wherein a hollow frame is provided on the sign body, and the hollow frame corresponds to the outer contour of the rotary switch base or operating button of the switch device.

[0008] Optionally, warning patterns are provided on both the front and back sides of the sign body.

[0009] Optionally, warning words are provided on both the front and back of the sign body.

[0010] Optionally, the shape of the cutout frame is one of a circle, a semicircle, a rectangle, or a triangle.

[0011] Optionally, the contact surface between the hollow frame and the rotary switch base or the operation button is provided with an anti-slip layer.

[0012] Optionally, the contact portion between the hollow frame and the rotary switch base or the operation button is made of an elastic material.

[0013] Optionally, the surface of the sign body is covered with a layer of reflective or fluorescent material.

[0014] Optionally, the main body of the sign may be red, yellow, or orange.

[0015] The technical solution of this utility model has at least the following advantages and beneficial effects: By setting a hollow frame that corresponds to the outer contour of the rotary switch base and operating button of the switching device, the sign can be directly fitted onto the equipment to form a tight fit. This avoids the shaking or falling off caused by equipment vibration or personnel touching the equipment, which is a problem with traditional rope suspension methods, and effectively improves safety and reliability.

[0016] The matching design of the hollow frame with the equipment outline ensures that the sign is fixed in position and consistent in direction when it is hung. It overcomes the problems of inconsistent length, uneven height or tilt caused by manual binding, making the on-site hanging neat and uniform, and enhancing the standardization of operation and visual cleanliness. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the first sign for the anti-misoperation sign applicable to the switch handle and operation button of the present utility model embodiment; Figure 2 This is a structural schematic diagram of the second sign for an anti-accidental operation sign applicable to the switch handle and operation button of the present utility model embodiment; Figure 3 This is a structural diagram of the anti-accidental operation sign for the switch device's changeover handle and operating button, according to an embodiment of this utility model. Icons: 1-Sign body, 11-Warning pattern, 12-Warning words, 13-Hollow frame, 2-Switch device, 21-Rotary switch base, 211-Change handle, 22-Operation button. Detailed Implementation

[0018] The following is a detailed description of the embodiments, in conjunction with the accompanying drawings.

[0019] Reference Figure 1 , Figure 2 , Figure 3An anti-accidental operation sign for a switchgear handle and operating button includes: a sign body 1, on which a cutout frame 13 is provided, the cutout frame 13 corresponding to the outer contour of the rotary switch base 21 or operating button 22 of the switchgear 2. Figure 1 As shown, the cutout frame 13 corresponds to the outer contour of the rotary switch base 21 of the switch device 2. The rotary switch base 21 is the fixed base of the changeover handle 211, and its shape is usually circular, square, or polygonal. The main body 1 of the sign is used to warn of the changeover handle 211 of the switch device. Figure 2 As shown, the hollow frame 13 corresponds to the outer contour of the operation button 22. The sign body 1 is fitted onto the outside of the operation button 22 through the circular hollow frame 13 to warn of the operation button 22 of the switch device. The inner edge shape of the hollow frame 13 is interference-fitted with the contour of the corresponding rotary switch base 21 or operation button 22, thereby achieving the effect of preventing it from falling off. The sign body 1 can be made of engineering plastic (such as ABS) with certain toughness and strength, which ensures durability and allows for slight deformation during installation to ensure smooth insertion, and utilizes the elasticity of the material to achieve self-locking fastening.

[0020] In some embodiments, warning patterns 11 are provided on both the front and back sides of the sign body 1. The warning patterns 11 can be internationally recognized prohibition symbols (such as a red circle with a slash). By printing warning patterns on both sides, it is ensured that the warning patterns are clearly displayed on both sides regardless of how the sign is flipped due to airflow, equipment vibration, or accidental contact. This effectively avoids the warning failure problem caused by the absence of warning patterns on the back of traditional single-sided signs after flipping, reducing the risk of misoperation and enhancing the reliability of safety protection. In some embodiments, warning text 12 is provided on both the front and back of the sign body 1. The warning text 12 can be words such as "Operation Prohibited While Manning" or "Switch Off While Manning," clearly indicating the warning information that operation of the changeover handle is prohibited, or providing specific warnings for button operation. By printing warning text on both sides, it is ensured that no matter how the sign is flipped due to airflow, equipment vibration, or accidental touch, the warning text can be clearly displayed on both sides. This effectively avoids the warning failure problem caused by the absence of warning text on the back of traditional single-sided signs after flipping, reduces the risk of misoperation, and enhances the reliability of safety protection.

[0021] In some embodiments, the sign body 1 can be made of PVC or resin material. PVC or resin material has a certain degree of flexibility and mechanical strength, and can undergo slight deformation during use, allowing the sign to smoothly snap into the rotary switch seat or operating button of the switch device through the hollow frame, and to achieve self-locking fastening by utilizing the elasticity of the material.

[0022] In some embodiments, the shape of the cutout frame 13 can be one of a circle, a semi-circle, a rectangle, or a triangle. The fixed base of the rotary switch base 21, i.e., the changeover handle 211, of the power field switchgear comes in various shapes, commonly circular, square (rectangular), etc., but other polygonal or special shapes may also exist. Designing the cutout frame 13 with multiple selectable shapes (circular, semi-circular, rectangular, triangular) allows the sign body 1 to cover most different types of switch bases on the market. Users only need to select the sign body 1 with the corresponding cutout frame shape according to the actual contour of the field switch base for installation.

[0023] In some embodiments, the contact surface between the cutout frame 13 and the rotary switch base 21 or the operating button 22 is provided with an anti-slip layer. When manufacturing the sign body 1, a two-color injection molding or insert injection molding process is used. First, a rigid substrate (such as ABS engineering plastic) is formed for the sign body. Then, soft rubber or thermoplastic elastomer (TPE / TPU) material is directly injected into the inner edge contact area of ​​the cutout frame to form an integrated anti-slip layer. The static friction provided by the anti-slip layer effectively resists slight vibrations generated during equipment operation, airflow caused by personnel passing by, or external forces caused by accidental slight touches, reducing the possibility of it shaking, rotating, or even falling off due to external forces. It can better fill the small uneven gaps that may exist between the sign and the switch component surface, increasing the effective contact area. This not only improves the interference fit effect but also allows the sign to adapt to more switch equipment with different manufacturing tolerances or surface conditions, improving versatility and installation success rate.

[0024] In some embodiments, the contact portion between the cutout frame 13 and the rotary switch base 31 or the operating button 32 is made of an elastic material. The elastic material of the contact portion can be selected from materials with high elasticity and wear resistance, such as soft rubber, thermoplastic elastomer (TPE), or thermoplastic polyurethane (TPU). These materials are combined with the material of the sign body 1 (such as ABS engineering plastic) to form a composite structure. The elastic material covers the entire contact surface between the cutout frame and the switch component, forming a continuous elastic ring. For example, for a circular cutout frame, the elastic material is made into an annular pad; for a rectangular frame, it covers the four inner edges. The cross-section of the elastic layer can be designed as an arc or a serrated shape to increase contact points and friction. During installation, the elastic material deforms under pressure, filling minor unevenness on the surface of the switch component.

[0025] In some embodiments, the surface of the sign body 1 is covered with a reflective or fluorescent material layer. The reflective layer may be a microprism reflective film or a glass microsphere reflective film. The surface of the microprism reflective film or glass microsphere reflective film is densely covered with tiny optical structures, which can reflect most of the light back to the source (such as a flashlight or car headlight) when light shines on it, thereby producing a striking reflective effect. This reflective film is used as a surface material and is firmly adhered to the surface of the sign body 1 using an adhesive.

[0026] The fluorescent material layer can be printed using photoluminescent fluorescent ink. This ink contains long-lasting fluorescent pigments such as alkaline earth aluminates activated by rare earth elements, which can continuously glow for several hours in the dark after absorbing energy from natural or artificial light sources. Through screen printing, the fluorescent ink is directly printed onto the warning patterns and text areas on the surface of the sign body 1, or covers the entire sign surface, and then covered with a transparent protective film. This overcomes the deficiency of traditional signs where their warning effect is greatly reduced in low-light conditions.

[0027] In some embodiments, the main body 1 of the sign can be red, yellow, or orange. Red, yellow, and orange are internationally recognized high-alert colors. In complex power plant environments, these colors can quickly attract the visual attention of personnel and form a strong contrast with the surrounding dark metal equipment, making the warning sign highly visible. This greatly reduces the time for operators to identify risk sources and provides the first rapid visual barrier to prevent misoperation.

Claims

1. A sign to prevent accidental operation of a switch handle and operating button, characterized in that, include: The sign body (1) is provided with a hollow frame (13), which corresponds to the outer contour of the rotary switch seat (21) or operation button (22) of the switch device (2).

2. The anti-accidental operation sign for switch handles and operating buttons as described in claim 1, characterized in that, Warning patterns (11) are provided on both the front and back of the main body (1) of the sign.

3. The anti-accidental operation sign for switch handles and operating buttons as described in claim 1, characterized in that, Warning signs (12) are provided on both the front and back of the main body of the sign (1).

4. The anti-accidental operation sign for switch handles and operating buttons as described in claim 1, characterized in that, The hollow frame (13) is in the shape of a circle, a semi-circle, a rectangle or a triangle.

5. The anti-accidental operation sign for switch handles and operating buttons as described in claim 1, characterized in that, The contact surface between the hollow frame (13) and the rotary switch base (21) or the operation button (22) is provided with an anti-slip layer.

6. The anti-accidental operation sign for switch handles and operating buttons as described in claim 1, characterized in that, The contact portion between the hollow frame (13) and the rotary switch base (21) or the operation button (22) is made of elastic material.

7. The anti-accidental operation sign for switch handles and operating buttons as described in claim 1, characterized in that, The surface of the sign body (1) is covered with a layer of reflective or fluorescent material.

8. The anti-accidental operation sign for switch handles and operating buttons as described in claim 1, characterized in that, The main body (1) of the sign is red, yellow or orange.

Images